<template>
  <div class="login_containt">
    <div class="login_box">
      <!-- 头像 -->
      <div class="avatar_box">
        <img src="../assets/logo.png" alt="" />
      </div>
      <!-- 登录表单 -->
      <el-form
        ref="loginFormRef"
        :model="loginForm"
        label-width="0px"
        class="form_box"
        :rules="loginFormRules"
      >
        <!-- 用户名 -->
        <el-form-item prop="username">
          <el-input
            v-model="loginForm.username"
            prefix-icon="el-icon-user"
            placeholder="请输入用户名"
            clearable
          ></el-input>
        </el-form-item>
        <!-- 密码 -->
        <el-form-item prop="password">
          <el-input
            v-model="loginForm.password"
            type="password"
            prefix-icon="el-icon-lock"
            placeholder="请输入密码"
            clearable
          ></el-input>
        </el-form-item>
        <!-- 按钮 -->
        <el-form-item class="btns">
          <el-button type="primary" @click="login"> 登录</el-button>
          <el-button type="info" @click="resetLoginForm">重置</el-button>
        </el-form-item>
      </el-form>
    </div>
  </div>
</template>

<script>
export default {
  data() {
    return {
      // 这里是登录表单绑定的数据对象
      loginForm: {
        username: "admin",
        password: "123456",
      },
      //   这是表单验证的规则对象
      loginFormRules: {
        username: [
          { required: true, message: "请输入用户名", trigger: "blur" },
          { min: 3, max: 5, message: "长度在 3 到 5 个字符", trigger: "blur" },
        ],
        password: [
          { required: true, message: "请输入密码", trigger: "blur" },
          {
            min: 6,
            max: 10,
            message: "长度在 6 到 10 个字符",
            trigger: "blur",
          },
        ],
      },
    };
  },

  methods: {
    //   监听重置按钮点击事件
    resetLoginForm() {
      //   console.log(this);
      this.$refs.loginFormRef.resetFields();
    },

    // 监听登录按钮点击事件
    login() {
      this.$refs.loginFormRef.validate(async (valid) => {
        if (!valid) return;
        const { data: res } = await this.$http.post("login", this.loginForm);
        // console.log(res);
        if (res.meta.status !== 200)
          return this.$message.error("用户名或密码错误!");
        this.$message.success("登录成功");
        window.sessionStorage.setItem("token", res.data.token);
        this.$router.push("/home");
      });
    },
  },
};
</script>

<style lang="less" scoped>
.login_containt {
  height: 100%;
  background-color: #2b4b6b;

  .login_box {
    width: 450px;
    height: 300px;
    background-color: #fff;
    border-radius: 3px;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);

    .avatar_box {
      position: absolute;
      left: 50%;
      transform: translate(-50%, -50%);
      width: 135px;
      height: 135px;
      border: 1px solid #eee;
      background-color: #fff;
      border-radius: 50%;
      padding: 10px;

      > img {
        width: 100%;
        height: 100%;
        border-radius: 50%;
        background-color: #eee;
      }
    }

    .form_box {
      position: absolute;
      bottom: 0;
      box-sizing: border-box;
      width: 100%;
      padding: 20px;

      .btns {
        display: flex;
        justify-content: flex-end;
      }
    }
  }
}
</style>
